Development of Operating Speed Models for Different Vehicle Classes on Rural Two-Lane Highways

Hashim, Ibrahim H.

doi:10.21608/erjm.2008.69832

Cited by 3 publications

(5 citation statements)

References 2 publications

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“…A decrease in PCI will result in a lower speed. In a study [17], vehicle speed was examined on both distressed and nondistressed road sections. The road pavement condition was determined via visual observations and traffic data were collected at selected sites.…”

Section: Pavement Condition and Vehicle Speedmentioning

confidence: 99%

Impact of Road Pavement Condition on Vehicular Free Flow Speed, Vibration and In-Vehicle Noise

et al. 2023

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Road infrastructure in good condition is a key requirement for efficient transportation systems which leads to economic prosperity and improved quality of life. However, road surface conditions deteriorate over time according to traffic loads and environmental factors. Poor road conditions lead to congestion, accidents, lost productivity, and driver fatigue. This work considers the relationship between road pavement condition and vehicle speed, vibration, and in-vehicle noise. A 7 km section of the Grand Trunk Road, Peshawar, Pakistan divided into 280 segments (140 for each lane), of length 50 m was observed and the Pavement Condition Index (PCI) of each segment was determined based on the recurrent distress type and density according to ASTM D6433-011 guidelines. The number of very good, satisfactory, fair, poor, and very poor conditions are 51, 52, 81, 48, and 42, respectively. The mobile app BotlnckDectr was employed to measure vehicle speed, RPM, noise, vibration, GPS location, and time. Statistical analysis was employed to determine the relationship between PCI and vehicle speed, vibration, and in-vehicle noise. The results obtained indicate that noise and vibration increase by 3.3% and more than 30%, respectively, as the pavement condition changes from good to very poor, and vehicle speed decreases by 8.8%.

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Section: Pavement Condition and Vehicle Speedmentioning

confidence: 99%

Impact of Road Pavement Condition on Vehicular Free Flow Speed, Vibration and In-Vehicle Noise

et al. 2023

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“…To evaluate the overall performance of various treatments, data from the LTPP SPS-3 program on fatigue cracking, longitudinal cracking, rutting, and roughness were used. The results of paired t-test for fatigue cracking were shown in Table (4). Thin overlay and chip seal had pvalues less than 0.05, indicating that their improving effectiveness on fatigue cracking was significant.…”

Section: Maintenancementioning

confidence: 99%

“…Such distresses can lead to a variety of difficulties, particularly in developing countries such as Egypt. Pavement surface conditions have an influence on traffic safety, operating speed, maneuverability, driver comfort, and service volume [4]. To overcome the distresses associated with materials, traffic, and environmental conditions, years of maintenance and rehabilitation are required [5].…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of Maintenance and Rehabilitation Treatments on Long-Term Asphalt Pavement Performance

Nagy

El-Maaty

Hashim

2022

ERJ. Engineering Research Journal

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This paper aims to evaluate the impact of maintenance and rehabilitation treatments on long-term asphalt pavement performance using the data collected in the Specific Pavement Studies: SPS-3 and SPS-5 of the Long-Term Pavement Performance (LTPP) program. Pavement performance indicators include fatigue cracking, longitudinal cracking, rutting, and roughness. The SPS-3 concentrates on the effect of four maintenance treatments include: thin overlay, slurry seal, crack seal, and chip seal. The SPS-5 concentrates on rehabilitation methods like overlay thickness (51 and 127mm), asphalt overlay materials (recycled hot mix asphalt (HMA) compared with virgin mix), and pre-overlay treatments (with or without milling). All of the research sites were wet and dry with no freeze as each of them had a climate that was exactly similar to Egypt's. Statistical methods such as boxplot, average long-term effectiveness increment, annual variation, and paired t-test were used. According to maintenance, the results indicated that chip seal and thin overlay had the greatest impact on long-term cracking improvements. Long-term roughness and rutting improvements were best achieved with a thin overlay. In terms of fatigue cracking and roughness, the effectiveness of crack sealing was the worst. For rehabilitation, the results showed that recycled had no influence on fatigue cracking for thin overlays. As expected, the use of recycled was found to be effective in decreasing the rutting and roughness potential of thick overlays. The climate had no obvious impact on the development of rutting while wet climates provided higher fatigue cracking and longitudinal progress for recycled sections.

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“…(Dewo, 2022) menyebutkan besarnya nilai TDP maka akan berpengaruh terhadap lambatnya kecepatan kendaraan, sebaliknya kecilnya nilai TDP maka akan mempercepat laju kendaraan. Penelitian yang dilakukan oleh (Hashim, 2018) di Mesir menyimpulkan bahwa kondisi perkerasan berpengaruh pada kecepatan kendaraan dan kinerja operasional lalu lintas serta berdampak pada keselamatan lalu lintas, kondisi perkerasan yang buruk menyebabkan variasi yang signifikan pada kecepatan kendaraan. Terjadi penurunan kecepatan kendaraan sebesar 55% dalam kondisi jalan yang sangat buruk dibandingkan dengan kondisi jalan yang sangat baik dan mengakibatkan peningkatan 2,49% jumlah emisi yang disebabkan oleh perlambatan pergerakan (Setyawan, 2015).…”

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Evaluasi Tingkat Layanan Perkerasan Jalan pada Ruas Jalan Tanjung Sari Kabupaten Jember

Maliq,

Lalita,

Nurtjahjaningtyas

et al. 2023

JRSL

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Jalan Tanjung Sari adalah jalan kolektor primer pada Kabupaten Jember yang menghubungkan Kabupaten Jember dengan Kabupaten Banyuwangi. Panjang ruas jalan adalah 950 meter dengan tipe jalan 2/1 UD. Berdasarkan pengamatan secara visual pada survei pendahuluan terdapat kerusakan perkerasan jalan di sepanjang ruas Jalan Tanjung Sari. Jumlah kendaraan yang melintasi ruas jalan ini adalah kendaraan berat (HV) sebesar 41.58%, kendaraan ringan (LV) sebesar 22.57%, dan kendaraan motor (MC) sebesar 35.85%. Penelitian ini menggunakan metode Dirgolaksono dan Indrasurya B.Mochtar untuk menentukan jenis dan tingkat kerusakan jalan pada ruas Jalan Tanjung Sari dan menentukan jenis penanganan menggunakan metode Bina Marga. Terdapat tiga jenis komponen utama yang dibahas pada metode ini yaitu nilai kerusakan, kondisi drainase, dan riding quality (RQ). Hasil pengamatan dan penilaian kondisi perkerasan diperoleh kerusakan yang terjadi disepanjang ruas jalan Tanjung Sari adalah Lubang sebesar 2,49 % , Pelepasan butir sebesar 11,00 %, Retak buaya sebesar 31,58 %, Retak Blok sebesar 19,43 %, Bekas Tambalan sebesar 13,23%, Rusak samping sebesar 0,53 %, Retak susunan sebesar 2,53%, dan Retak melintang sebesar 0,58%. Nilai dari Total Distress Point (TDP) keseluruhan 606,25 dengan rata-rata 30,31; Riding Quality (RQ) nilai keseluruhan 68 dengan rata-rata 3,4; serta Nilai Kondisi Drainase (NKD), nilai keseluruhan 149 dengan rata-rata 7,45. Selanjutnya rekomendasi untuk penanganan kerusakan jalan pada ruas Jalan Tanjung Sari adalah penambalan lubang, pengisian retakan (sealing) dan lapis tambah (overlay)

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Development of Operating Speed Models for Different Vehicle Classes on Rural Two-Lane Highways

Cited by 3 publications

References 2 publications

Impact of Road Pavement Condition on Vehicular Free Flow Speed, Vibration and In-Vehicle Noise

Impact of Road Pavement Condition on Vehicular Free Flow Speed, Vibration and In-Vehicle Noise

Evaluation of Maintenance and Rehabilitation Treatments on Long-Term Asphalt Pavement Performance

Evaluasi Tingkat Layanan Perkerasan Jalan pada Ruas Jalan Tanjung Sari Kabupaten Jember

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